Massage roller



FIG. 1 is a top and left side perspective view of a massage roller, embodying our new design;

FIG. 2 is a top and right side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left side elevation view thereof; and,

FIG. 8 is a right side elevation view thereof.

The broken lines shown are included for the purpose of illustrating the unclaimed portions of the article and form no part of the claim. 

CLAIM The ornamental design for a massage roller, as shown and described. 